Table 4 Risk ratios, p-values and 95% CI of the predictor variables in the model
Variables | Risk Ratio p-value (95% CI) | |||||||
|---|---|---|---|---|---|---|---|---|
HHC | SNF | IRF | LTCH | |||||
Regional (Hospital location) | ||||||||
 Census Division: East South Central (Reference) | ||||||||
  East North Central | 1.5*** | (1.3, 1.7) | 1.00 | (0.8,1.2) | 2.8*** | (2.0, 3.7) | 1.2 | (0.6, 2.1) |
  Middle Atlantic | 5.4*** | (4.7, 6.2) | 2.9*** | (2.3,3.4) | 1.8*** | (1.4, 2.2) | 2.1** | (1.2, 3.7) |
  Mountain | 0.3*** | (0.1, 0.4) | 1.6** | (1.1,2.1) | 6.7*** | (4.3,10.4) | 0.5 | (0.0, 2.5) |
  New England | 1.7*** | (1.4, 1.9) | 3.5*** | (2.8,4.2) | 1.5*** | (1.1, 1.8) | 2.3** | (1.3, 4.1) |
  Pacific | 2.5*** | (1.7, 3.7) | 1.9*** | (1.3,2.7) | 0.0*** | (0.0, 0.0) | 1.9 | (0.5, 6.9) |
  South Atlantic | 3.6*** | (2.9, 4.5) | 2.4*** | (1.7,3.3) | 0.8 | (0.5, 1.0) | 1.9 | (0.8, 3.9) |
  West North Central | 2.0*** | (1.7, 2.4) | 4.7*** | (3.5,6.1) | 0.2*** | (0.1, 0.3) | 1.6 | (0.6, 3.9) |
  West South Central | 9.2*** | (7.6,11.1) | 3.0*** | (2.1,4.3) | 3.0*** | (2.2, 3.9) | 13.2*** | (6.7, 25.6) |
Hospital/Provider | ||||||||
 Bed Size Range: 500 + (Reference) | ||||||||
  < 5 | 0.4** | (0.0,4.5) | 3.3** | (0.2,38.1) | 0.1*** | (0.0,0.1) | 0.4*** | (0.3, 0.4) |
  06–99 | 0.5* | (0.2, 0.8) | 2.4** | (0.8,6.24) | 1.0** | (0.3, 2.8) | 0.0*** | (0.0, 0.0) |
  100–199 | 0.2*** | (0.1, 0.2) | 0.9** | (0.6,1.2) | 0.9** | (0.6, 1.2) | 0.5** | (0.1, 1.2) |
  200–299 | 0.7*** | (0.5, 0.8) | 0.5*** | (0.4,0.6) | 0.5*** | (0.3, 0.6) | 1.1** | (0.6, 2.1) |
  300–499 | 0.7*** | (0.5, 0.8) | 0.4*** | (0.3, 0.5) | 2.5*** | (1.9, 3.2) | 1.0** | (0.5, 2.1) |
 Hospital Status: Urban (Reference) | ||||||||
  Rural | 1.1 | (0.8, 1.4) | 1.4* | (1.0,2.0) | 0.9 | (0.6, 1.4) | 0.2 | (0.1, 1.1) |
 Teaching Facility Affiliation | 0.4*** | (0.3, 0.4) | 0.2*** | (0.1,0.3) | 0.4*** | (0.3, 0.6) | 0.1*** | (0.1,0.3) |
Patient demographic | ||||||||
 Gender: Male (Reference) | ||||||||
  Female | 1.3*** | (1.1, 1.4) | 2.0*** | (1.7, 2.3) | 1.6** | (1.3, 1.9 1.9** | (1.2, 2.9) | |
 Marital Status: Married (Reference) | ||||||||
  Divorced | 1.0 | (0.8, 1.2) | 3.1*** | (2.4,3.9) | 2.3*** | (1.8, 3.0) | 3.2*** | (1.8, 5.7) |
  Single | 1.0 | (0.9, 1.2) | 3.4*** | (2.7,4.2) | 2.1*** | (1.6, 2.7) | 2.2** | (1.2, 4.1) |
  Widowed | 1.1 | (0.9, 1.3) | 2.0*** | (1.6,2.5) | 1.9*** | (1.5, 2.5) | 2.6*** | (1.5, 4.6) |
 Race: Caucasian (Reference) | ||||||||
  African American | 1.2* | (1.0, 1.4) | 0.9 | (0.7,1.2) | 1.00 | (0.7, 1.2) | 1.61 | (0.9, 2.8) |
  Asian | 1.6* | (1.0, 2.6) | 0.4 | (0.2,1.1) | 0.67 | (0.2, 1.5) | 0.43 | (0.0, 4.4) |
  Hispanic | 0.6 | (0.3, 1.2) | 0.9 | (0.3,2.8) | 0.71 | (0.2, 1.9) | 1.24 | (0.1,11.5) |
  Native American | 0.5 | (0.3, 1.1) | 0.5 | (0.2,1.4) | 1.1 | (0.4, 2.9) | 0.0*** | (0.0, 0.0) |
  Other | 1.1 | (0.8, 1.7) | 0.8 | (0.4,1.4) | 0.64 | (0.2, 1.4) | 0.98 | (0.1, 5.2) |
 Age in years | 1.0*** | (1.0, 1.0) | 1.1*** | (1.1,1.1) | 1.1*** | (1.0, 1.1) | 1.1*** | (1.0, 1.1) |
Related factors of PAC referral discharge | ||||||||
 Length of stay, days | 1.0*** | (1.0, 1.0) | 1.1*** | (1.1, 1.1) | 1.1*** | (1.0, 1.1) | 1.2*** | (1.1, 1.2) |
 Charlson index | 1.1*** | (1.0, 1.1) | 1.3*** | (1.2,1.3) | 1.3*** | (1.2, 1.4) | 1.3*** | (1.1, 1.4) |
Comorbidity and diagnosis Information | ||||||||
 Coronary Bypass of Two Coronary Arteries | 1.0*** | (0.8, 1.1) | 1.0*** | (0.8,1.3) | 0.9*** | (0.7,1.2) | 1.6*** | (0.9,3.0) |
 Coronary Bypass of Four or More Coronary Arteries | 1.2 | (0.9, 1.5) | 1.2 | (0.8,1.6) | 1.6** | (1.1, 2.2) | 0.6 | (0.1, 2.2) |
 Coronary Bypass of Three Coronary Arteries | 0.9 | (0.8, 1.1) | 0.8 | (0.7,1.1) | 1.1 | (0.8, 1.4) | 1.5 | (0.7, 2.8) |
 Coronary Bypass of One Coronary Artery | 1.0 | (0.8, 1.1) | 0.9 | (0.7,1.1) | 0.9 | (0.7, 1.2) | 1.6 | (0.8, 3.0) |
 Open Replacement of Aortic Valve with Tissue Graft | 1.5** | (1.1, 1.9) | 1.7*** | (1.2,2.2) | 1.2 | (0.8, 1.7) | 1.5 | (0.7, 3.1) |
 Open Replacement of Aortic Valve | 1.0 | (0.7, 1.3) | 1.1 | (0.8,1.6) | 1.4 | (0.9, 2.0) | 0.6 | (0.2, 1.9) |
 Diabetes mellitus without complication | 0.8** | (0.7, 0.9) | 0.9 | (0.7,1.0) | 0.8 | (0.7, 1.0) | 0.9 | (0.5, 1.4) |
 Tobacco Use Disorder | 0.8** | (0.7, 0.9) | 0.7** | (0.6, 0.9) | 0.6*** | (0.5, 0.8) | 0.9 | (0.5, 1.6) |
 Atrial Fibrillation | 1.0 | (0.9,1.1) | 1.0 | (0.8,1.2) | 1.0 | (0.8, 1.2) | 1.2 | (0.7, 1.8) |
 Unspecified Hypertension | 1.0 | (0.9, 1.1) | 1.1 | (0.9,1.3) | 1.1 | (0.9, 1.3) | 0.8 | (0.5, 1.3) |
 Coronary Atherosclerosis | 0.9 | (0.7, 1.1) | 0.7* | (0.5,0.9) | 0.5*** | (0.4, 0.7) | 0.5 | (0.3, 1.1) |
 Intermediate Coronary Syndrome | 0.9 | (0.8,1.0) | 0.8 | (0.7,1.0) | 0.7 | (0.5, 0.8) | 0.7 | (0.3, 1.2) |
 Hyperlipidemia | 0.9 | (0.8, 1.0) | 0.8* | (0.7,0.9) | 0.9 | (0.7, 1.0) | 0.6* | (0.4, 0.9) |
 Posthemorrhagic Anemia | 0.7*** | (0.6, 0.8) | 0.8* | (0.7, 1.0) | 0.9 | (0.8, 1.1) | 1.2 | (0.8, 1.9) |
 Acute Myocardial Infarction | 1.0 | (0.9, 1.2) | 0.8 | (0.7,1.0) | 0.7** | (0.6, 0.9) | 0.7 | (0.4, 1.1) |
 Congestive Heart Failure | 1.0 | (0.9,1.2) | 1.2 | (0.9,1.4) | 1.1 | (0.9, 1.3) | 1.0 | (0.6, 1.6) |
 Anemia, Unspecified | 1.1 | (0.9,1.2) | 1.1 | (0.9,1.4) | 1.2 | (0.9, 1.5) | 0.9 | (0.5, 1.6) |
 Pulmonary Collapse | 0.9 | (0.8, 1.1) | 0.9 | (0.7,1.1) | 1.2 | (0.9, 1.5) | 1.2 | (0.7, 1.9) |
 Acute Kidney Failure, Unspecified | 0.9 | (0.7, 1.1) | 1.1 | (0.8,1.3) | 1.1 | (0.8, 1.3) | 1.9** | (1.2, 3.0) |